(chore) bump version

(chore) update ignore

(chore) bump version

bump version and release 0.6.0

bump version and release 0.5.0

bump version and release 0.4.1

added contributor section in README and package.json

@four43, @zhuzhe1983, @arjunmehta

bump version and publish

Merge branch 'master' of github.com:sunng87/node-geohash

Conflicts:
	package.json